Whirlpool bathtub



FIG. 1 is a perspective view of a whirlpool bathtub showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a cross-sectional view thereof, taken on Line 6—6 of FIG. 3;

FIG. 7 is a cross-sectional view thereof, taken on Line 7—7 of FIG. 2; and,

FIG. 8 is a cross-sectional view thereof, taken on Line 8—8 of FIG. 3. 

The ornamental design for a whirlpool bathtub, as shown. 